cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A087271 Least number x such that gcd(x, pi(x)) = n.

Table of values

n a(n)
1 1
2 4
3 6
4 8
5 50
6 66
7 77
8 56
9 27
10 30
11 33
12 156
13 169
14 182
15 465
16 224
17 238
18 252
19 2299
20 1380
21 189
22 902
23 207
24 96
25 100
26 1872
27 1323
28 2464
29 1247
30 120
31 1333
32 3168
33 528
34 1258
35 1295
36 828
37 3441
38 2888
39 1755
40 5800
41 1271
42 1932
43 731
44 748
45 765
46 2852
47 2209
48 11568
49 2695
50 4000

List of values

[1, 4, 6, 8, 50, 66, 77, 56, 27, 30, 33, 156, 169, 182, 465, 224, 238, 252, 2299, 1380, 189, 902, 207, 96, 100, 1872, 1323, 2464, 1247, 120, 1333, 3168, 528, 1258, 1295, 828, 3441, 2888, 1755, 5800, 1271, 1932, 731, 748, 765, 2852, 2209, 11568, 2695, 4000]